Pressure wash barn

Old 03-17-06, 12:50 PM
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Pressure wash barn

We have an barn with peeling paint and some rotting wood siding. Had someone who repairs timber frame structures look at it yesterday to plan structural repairs. He suggested pressure washing exterior, then staining. Everything I have ever read says not to pressure wash, especially old wood. Will probably do more damage, drive water deep into fibers, etc. Certainly faster than scraping.

Can I get a few opinions on pressure washing 80+ year old wood?

Old 03-17-06, 05:28 PM
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A pressure washer can be a valuable tool if used correctly. It can also cause a lot of damage if used inccorectly.

I wouldn't be afraid to use it on most barns. You do need to use care. The main objective with using a PW is cleaning and not paint removal. The fact that a lot of loose paint will be removed is just an added bonus. Washing it correctly will aid in the prep process but should not be used to elimante scraping. Ofcourse the wetter the wood gets the longer it will need to dry before appling paint/stain.

Using the correct pressure and the right tip for the job will make it an asset. Too much pressure, narrow tip or moving the wand too slow or close is where the chance of damage comes from.

hope this helps
Old 03-18-06, 12:30 PM
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That was very well put
I can't think of anything to add except "Yup"

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